[INFO] cloning repository https://github.com/Riari/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Riari/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiari%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiari%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 183ab24242c4ae20970979f2ee8ac5f87ab2b586
[INFO] checking Riari/aoc-2020 against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiari%2Faoc-2020" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Riari/aoc-2020 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Riari/aoc-2020
[INFO] finished tweaking git repo https://github.com/Riari/aoc-2020
[INFO] tweaked toml for git repo https://github.com/Riari/aoc-2020 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/Riari/aoc-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae8c54d7cb401f1225ac9ded73f0d30820a90104bd706d534cc054251d5384b3
[INFO] running `Command { std: "docker" "start" "-a" "ae8c54d7cb401f1225ac9ded73f0d30820a90104bd706d534cc054251d5384b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8c54d7cb401f1225ac9ded73f0d30820a90104bd706d534cc054251d5384b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8c54d7cb401f1225ac9ded73f0d30820a90104bd706d534cc054251d5384b3", kill_on_drop: false }`
[INFO] [stdout] ae8c54d7cb401f1225ac9ded73f0d30820a90104bd706d534cc054251d5384b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 632a93e4b7900f77d17f5c0c5ca60de2e823d9c78596f151b9b4ada15aece743
[INFO] running `Command { std: "docker" "start" "-a" "632a93e4b7900f77d17f5c0c5ca60de2e823d9c78596f151b9b4ada15aece743", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/13.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/10.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/20.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_fold_self)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc-2020` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/10.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/13.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:208:30
[INFO] [stdout]     |
[INFO] [stdout] 208 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x <= b.pos.x && a.pos.y <= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:209:30
[INFO] [stdout]     |
[INFO] [stdout] 209 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x <= b.pos.x && a.pos.y >= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/20.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_fold_self)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:210:30
[INFO] [stdout]     |
[INFO] [stdout] 210 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x >= b.pos.x && a.pos.y >= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:211:30
[INFO] [stdout]     |
[INFO] [stdout] 211 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x >= b.pos.x && a.pos.y <= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/08.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/08.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:208:30
[INFO] [stdout]     |
[INFO] [stdout] 208 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x <= b.pos.x && a.pos.y <= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:209:30
[INFO] [stdout]     |
[INFO] [stdout] 209 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x <= b.pos.x && a.pos.y >= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:210:30
[INFO] [stdout]     |
[INFO] [stdout] 210 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x >= b.pos.x && a.pos.y >= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::slice::Iter` in the current scope
[INFO] [stdout]    --> src/bin/20.rs:211:30
[INFO] [stdout]     |
[INFO] [stdout] 211 |     corners.push(grid.iter().fold_first(|a, b| if a.pos.x >= b.pos.x && a.pos.y <= b.pos.y { a } else { b }).unwrap().id);
[INFO] [stdout]     |                              ^^^^^^^^^^ method not found in `std::slice::Iter<'_, Tile>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "632a93e4b7900f77d17f5c0c5ca60de2e823d9c78596f151b9b4ada15aece743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632a93e4b7900f77d17f5c0c5ca60de2e823d9c78596f151b9b4ada15aece743", kill_on_drop: false }`
[INFO] [stdout] 632a93e4b7900f77d17f5c0c5ca60de2e823d9c78596f151b9b4ada15aece743
